The Kirkendall Effect and Multi-component Diffusion Simulations.

In this paper, some aspects of the determination of the concentration profile during diffusion in NiAl- Ti and CMSX4 systems are shown by means of numerical simulations. The results are compared with experiments. The bivelocity method is used to show the evolution of the three-component multiphase system. The simulations present that the local entropy production allows for determination of the profiles in complicated systems. [ABSTRACT FROM AUTHOR]